Affiliation: | a C. L. Rock is an associate professor, V. Newman is an associate clinical professor, and J. P. Pierce is a professor in the Department of Family and Preventive Medicine, and S. W. Flatt is a senior statistician and S. Faerber is project director for the Women's Healthy Eating and Living Study in the Cancer Prevention and Control Program, University of California, San Diego, La Jolla, USA;b B. J. Caan is a senior epidemiologist in the Division of Research, Kaiser Foundation Research Institute, Kaiser Permanente Northern California, Oakland, USA;c M. N. Haan is an associate professor in the Department of Epidemiology and Preventive Medicine, University of California, Davis, USA;d M. L. Stefanick is an associate professor in the Department of Medicine, Stanford University, Stanford Center for Research in Disease Prevention, Palo Alto, Calif, USA |